1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesised through alkane elimination reactions.

1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesised through alkane elimination reactions.
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通过烷烃消除反应合成镁和锌的 1,8-双(甲硅烷基酰胺基)萘配合物。

DOI:
10.1039/c7dt00471k
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发表时间:
2017
期刊:
2003)
影响因子:
--
通讯作者:
Bradley MA
Bradley MA
中科院分区:
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文献类型:
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作者:
Bradley MA

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烷基镁或烷基锌与1,8-二(三有机硅基)萘二胺反应,得到了具有消除烷烃作用的1,8-二(三有机硅基)萘二胺配合物。1,8-C10 H6(NSiMePh 2 H)2与1或2当量MgnBu 2之间的反应提供了两种具有不同镁配位环境的络合物; 1,8-C10 H6(NSiMePh 2 H)2与MgnBu 2之间以1:1的比例反应提供了1,8-C10 H6(NSiMePh 2 H)2与MgnBu 2之间的反应  。(NSiMePh 2)2{Mg(THF)2}(1),其特征在于桥接两个配体氮供体的单个镁中心,同时处理1,8-C10 H6(NSiR 3 H)2(R3 = MePh 2,iPr 33)与2当量MgnBu 2反应,得到具有四元Mg 2N 2环的四元配合物1,8-C10 H6(NSiR 3)2{nBuMg(THF)}2(R3 = MePh 22,R3 = iPr 33)。类似地,1,8-C10 H6(NSiiPr 3)2{MeMg(THF)}2(4)和1,8-C10 H6(NSiMePh 2)2{ZnMe}2(5)通过与前配体和两当量的MMe 2(M = Mg,Zn)反应形成。1,8-C10 H6(NSiMePh 2 H)2与2当量MeMgX反应,得到了1,8-C10 H6(NSiMePh 2)2(XMgOEt 2)2(X = Br 6; X = I7)。还从7的溶液中分离出非常少量的[1,8-C10 H6(NSiMePh 2)2{IMG(OEt 2)}]2(8),其通过两个二氨基萘配体在4-位上的偶联以及其中一个萘基芳烃环的伴随脱芳化而形成。
The reactions between magnesium or zinc alkyls and 1,8-bis(triorganosilyl)diaminonaphthalenes afford the 1,8-bis(triorganosilyl)diamidonaphthalene complexes with elimination of alkanes. The reaction between 1,8-C10H6(NSiMePh2H)2 and one or two equivalents of MgnBu2 affords two complexes with differing coordination environments for the magnesium; the reaction between 1,8-C10H6(NSiMePh2H)2 and MgnBu2 in a 1 : 1 ratio affords 1,8-C10H6(NSiMePh2)2{Mg(THF)2} (1), which features a single magnesium centre bridging both ligand nitrogen donors, whilst treatment of 1,8-C10H6(NSiR3H)2 (R3 = MePh2, iPr3) with two equivalents of MgnBu2 affords the bimetallic complexes 1,8-C10H6(NSiR3)2{nBuMg(THF)}2 (R3 = MePh22, R3 = iPr33), which feature four-membered Mg2N2 rings. Similarly, 1,8-C10H6(NSiiPr3)2{MeMg(THF)}2 (4) and 1,8-C10H6(NSiMePh2)2{ZnMe}2 (5) are formed through reactions with the proligands and two equivalents of MMe2 (M = Mg, Zn). The reaction between 1,8-C10H6(NSiMePh2H)2 and two equivalents of MeMgX affords the bimetallic complexes 1,8-C10H6(NSiMePh2)2(XMgOEt2)2 (X = Br 6; X = I 7). Very small amounts of [1,8-C10H6(NSiMePh2)2{IMg(OEt2)}]2 (8), formed through the coupling of two diamidonaphthalene ligands at the 4-position with concomitant dearomatisation of one of the naphthyl arene rings, were also isolated from a solution of 7.
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